CN204738803U - Big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device - Google Patents
Big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device Download PDFInfo
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- CN204738803U CN204738803U CN201520458518.XU CN201520458518U CN204738803U CN 204738803 U CN204738803 U CN 204738803U CN 201520458518 U CN201520458518 U CN 201520458518U CN 204738803 U CN204738803 U CN 204738803U
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Abstract
The utility model provides a big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device, including vapour and liquid separator, imported shut -off valve is installed to vapour and liquid separator's entrance point, and vapour and liquid separator's top exit end is connected with first pipeline, is equipped with natural gas flowmeter, natural gas export shut -off valve on the first pipeline, the bottom exit end is connected with the second pipeline, is equipped with profit shut -off valve, profit mass flow meter and electric control valve on the second pipeline, first pipeline and second pipeline join back and the 6th pipeline connection, are equipped with gas -liquid mixture export shut -off valve on the 6th pipeline, vapour and liquid separator, first pipeline, second pipeline, the 6th pipeline and import shut -off valve all install on the sledge seat. Splitter, measuring equipment and auxiliary line are all integrated on a sledge seat, the convenient removal and the installation, and through the integrated design of skid -mounted ization, can realize continuous metering, and reduce equipment investment cost, also can realize high -efficient accurate lumbricine gas -producing well simultaneously and test the separation measurement.
Description
Technical field
The utility model relates to a kind of large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit, and specifically a kind of oil and gas industry is used for the gas-liquid separation of natural gas well mouth, the metering of gas-liquid follow-on test and closed conveying device.
Background technology
The metering of gas well output is an important process in the production management of gas field.Carry out accurately, timely measuring to gas well output, to grasp gas reservoir situation, formulate production decision and there is important directive significance.
In China's oil Gas Industry, the defeated metering process of the inner gas well natural gas collection of oil gas field mainly contains 3 kinds of method of measurement: one is individual well separate measurement; One is the metering of individual well moisture; One is many wells rotation (intermittently) separate measurement.
The relevant criterion that China does not also have moisture to measure and technical specification, lack effective technological guidance to the aspect such as type selecting, test, operation and maintenance of wet gas meter, the application of some new moisture measurement technologies is also more delayed.Because gas well is without gas-liquid separation, containing free water and solid impurity, and foul is easily adsorbed in flow meter inside, and the accuracy of measuring is relatively low, and flow meter is fragile.
Individual well rotation (intermittently) metering in gas field application for many years, is measured after the method gas-liquid separation, and metering is comparatively accurate, flexible form, cost of production are lower, are still a kind of metering method of economical rationality at present.Rotation (intermittently) measuring requirement gas well output steadily, without larger fluctuation, aquifer yield is little, and every day one-well metering time is no less than 8h.But for large collecting well group, because well clump quantity is more, change of production is comparatively large, is difficult to continued smooth metering.
Individual well separate measurement belongs to conventional metered dose mode, and because being continuous metering, and gas is through pretreatment, and the accuracy of measuring is secure, grasps the situation of gas reservoir in time, and owing to adopting three phase separation, measure respectively, corresponding cost increase is very large.
The large collecting well group development scheme of current low permeability gas field, does not have good metering method, adopts traditional individual well separate measurement due to equipment flowsheet complexity, invests higher; Adopt rotation (intermittently) to measure because large collecting well group well number is more, metering cycle is difficult to ensure, need increase number of devices; And low permeability gas field production decline is very fast, be difficult to the Production development of each well of accurate-metering.
Low permeability gas field well yield is low, and decline rate is fast; Production rate-maintenance capability is poor, and gas well lifetime is short, and initial stage well head pressure is high, pressure declines rapidly in a short time, and major part is in low pressure production status, carries out accurately, timely measuring to gas well output, to grasp gas reservoir situation, to low permeability gas field exploitation, there is important directive significance.
Utility model content
The purpose of this utility model be overcome existing complicated for equipment flowsheet in large collecting well group gas-liquid separation and measurement technology, investment is higher and metering cycle is difficult to the problem that ensures.
For this reason, the utility model provides large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit, comprise gas-liquid separator, the entrance point of gas-liquid separator is provided with import block valve, the top exit end of gas-liquid separator is connected with the first pipeline, first pipeline is provided with natural gas flowmeter, gas outlet block valve, and natural gas flowmeter is located near top exit end side;
The outlet at bottom end of gas-liquid separator is connected with the second pipeline, second pipeline is provided with profit block valve, oil-water mass flow rate meter and motor-operated control valve, profit block valve is located near outlet at bottom end side, and oil-water mass flow rate meter is located between profit block valve and motor-operated control valve;
Be connected with the 6th pipeline after the first described pipeline and the second pipeline converge, the 6th pipeline is provided with gas-liquid mixed outlet block valve, and gas-liquid mixed outlet block valve is connected with downstream line;
Described gas-liquid separator, the first pipeline, the second pipeline, the 6th pipeline and import block valve are installed on sledge seat.
Described gas-liquid separator is provided with content gauge, and content gauge is connected by the 3rd pipeline with motor-operated control valve.
Be provided with the 4th pipeline between the top exit end of described gas-liquid separator and natural gas flowmeter, and the 4th pipeline is provided with safety valve.
Also comprise five pipeline in parallel with safety valve, one end of 5th pipeline is connected with the arrival end of safety valve, one end is connected with the port of export of safety valve in addition, and the 5th pipeline is provided with emptying block valve and emptying flow control valve, and emptying flow control valve is positioned at the downstream position of the 5th pipeline.
Y-type filter is provided with between described profit block valve, oil-water mass flow rate meter.
In gas-liquid separator, top exit end side is provided with mist eliminator.
The 3rd described pipeline, the 4th pipeline, the 5th pipeline are installed on sledge seat.
Described gas-liquid separator adopts vertical gas-liquid separator.
The beneficial effects of the utility model: this large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit that the utility model provides, separation equipment, measuring equipment and auxiliary line are all integrated on a sledge seat, convenient mobile and installation, and by sledge dressization Integrated design, continuous metering can be realized, reduce equipment investment cost, what also can realize efficiently and accurately carries out test separate measurement to production gas well simultaneously.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit.
Description of reference numerals: 1, import block valve; 2, gas-liquid separator; 3, natural gas flowmeter; 4, gas outlet block valve; 5, gas-liquid mixed outlet block valve; 6, profit block valve; 7, y-type filter; 8, oil-water mass flow rate meter; 9, motor-operated control valve; 10, content gauge; 11, safety valve; 12, emptying block valve; 13, emptying flow control valve; 14, sledge seat; 15, the first pipeline; 16, the second pipeline; 17, the 3rd pipeline; 18, the 4th pipeline; 19, the 5th pipeline; 20, the 6th pipeline; 21, entrance point; 22, top exit end; 23, outlet at bottom end; 24, downstream line; 25, mist eliminator.
Detailed description of the invention
Further large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit is described in detail below with reference to accompanying drawing.
embodiment 1:
As shown in Figure 1, large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit, comprise gas-liquid separator 2, the entrance point 21 of gas-liquid separator 2 is provided with import block valve 1, the top exit end 22 of gas-liquid separator 2 is connected with the first pipeline 15, first pipeline 15 is provided with natural gas flowmeter 3, gas outlet block valve 4, and natural gas flowmeter 3 is located near top exit end 22 side; The outlet at bottom end 23 of gas-liquid separator 2 is connected with the second pipeline 16, second pipeline 16 is provided with profit block valve 6, oil-water mass flow rate meter 8 and motor-operated control valve 9, profit block valve 6 is located near outlet at bottom end 23 side, and oil-water mass flow rate meter 8 is located between profit block valve 6 and motor-operated control valve 9; Be connected with the 6th pipeline 20 after the first described pipeline 15 and the second pipeline 16 converge, the 6th pipeline 20 is provided with gas-liquid mixed outlet block valve 5, and gas-liquid mixed outlet block valve 5 is connected with downstream line 24; Described gas-liquid separator 2, first pipeline 15, second pipeline 16, the 6th pipeline 20 and import block valve 1 are installed on sledge seat 14.
When well site natural gas is normally produced, need to carry out accurate-metering to gas well output, grasp gas well liquid loading change tread, connect this large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit in well head downstream and carry out necessary test and measuring to gas well, detailed process is as follows:
Natural gas is produced gas well and is first entered gas-liquid separator 2 by import block valve 1, and in gas-liquid separator 2, carry out gas-liquid two-phase separation, gas phase enters natural gas flowmeter 3 from the top exit end of gas-liquid separator 2, through natural gas flowmeter 3 the measure of production;
While natural gas flowmeter 3 the measure of production natural gas, oil-water mixture in gas-liquid separator 2 enters profit block valve 6 by the outlet at bottom end of gas-liquid separator 2, enter oil-water mass flow rate meter 8 immediately, oil-water mass flow rate meter 8 pairs of oil-water mixtures are adopted to measure, the density of oil-water mixture is detected simultaneously, by detecting the density of oil-water mixture and the quality of mixture, machine calculates the quality of oil and the quality of water in oil-water mixture respectively as calculated again, reach oil and water measure respectively, the Production development of effective detection gas well, after metering, oil-water mixture enters motor-operated control valve 9 and returns gas phase pipeline,
Now, the natural gas through natural gas flowmeter 3 the measure of production all enters the 6th pipeline with the oil-water mixture through motor-operated control valve 9, and delivers to downstream line by gas-liquid mixed outlet block valve 5, does not have fluid discharge, accomplished complete closed conveying in well site.
The large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit that the utility model provides, by oil-water mass flow rate meter, oil-water mixture is measured, automatically the quality of oil and water is calculated respectively by implementing density measure, reach oil and water is measured respectively, the Production development of effective detection gas well.And this large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit, be a kind of sledge dressization integrating device, all devices is all integrated on a sledge seat, convenient mobile, adapts to low permeability gas field rolling development.By sledge dressization Integrated design, can realize continuous metering, reduce equipment investment cost, what also can realize efficiently and accurately carries out test separate measurement to production gas well simultaneously.
embodiment 2:
On the basis of embodiment 1, described gas-liquid separator 2 is provided with content gauge 10, and content gauge 10 is connected by the 3rd pipeline 17 with motor-operated control valve 9.
Motor-operated control valve 9 and content gauge 10 carry out chain control, time content gauge 10 detects that liquid level is low, turn down motor-operated control valve 9 aperture, large motor-operated control valve 9 aperture is opened time liquid level is high, keep follow-on test metering, liquid level continues normal production, adapts to gas well change of production.The change of output and liquid content in gas well liquid loading process can be met by the adjustment of motor-operated control valve 9 aperture.
embodiment 3:
On the basis of embodiment 1 or embodiment 2, be provided with the 4th pipeline 18 between the top exit end 22 of described gas-liquid separator 2 and natural gas flowmeter 3, and the 4th pipeline 18 is provided with safety valve 11.
What natural gas produced gas well carrys out atmospheric pressure when exceeding the design pressure of gas-liquid separator 2, and safety valve 11 is opened automatically, carries out pressure releasing, ensures device security.
embodiment 4:
On the basis of embodiment 3, also comprise five pipeline 19 in parallel with safety valve 11, one end of 5th pipeline 19 is connected with the arrival end of safety valve 11, one end is connected with the port of export of safety valve 11 in addition, 5th pipeline 19 is provided with emptying block valve 12 and emptying flow control valve 13, and emptying flow control valve 13 is positioned at the downstream position of the 5th pipeline 19.
When needs maintenance or when stopping test and measuring work, carry out the controlled emptying manipulation of natural gas by emptying block valve 12 and emptying flow control valve 13.
embodiment 5:
On the basis of embodiment 1, it should be noted that, between described profit block valve 6, oil-water mass flow rate meter 8, be provided with y-type filter 7.
Oil-water mixture is before entering oil-water mass flow rate meter 8, need through y-type filter 7, remove the solid phase impurity in oil-water mixture, ensure the certainty of measurement of oil-water mass flow rate meter 8, motor-operated control valve 9, avoid solid phase impurity to result in blockage to oil-water mass flow rate meter 8, motor-operated control valve 9.
embodiment 6:
In gas-liquid separator 2, top exit end 22 side is provided with mist eliminator 25.Mist eliminator 25, for reducing the carrying of top exit end 22 natural gas liquids of gas-liquid separator 2, ensures the accuracy of metering.
embodiment 7:
On the basis of embodiment 4, the 3rd described pipeline 17, the 4th pipeline 18, the 5th pipeline 19 are installed on sledge seat 14.All devices is all integrated on a sledge seat 14, convenient mobile, adapts to low permeability gas field rolling development.
embodiment 8:
On the basis of embodiment 1, described gas-liquid separator 2 adopts vertical gas-liquid separator.Be convenient to be integrated on sledge seat 14, conserve space.
This large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit that the utility model provides, separation equipment, measuring equipment and auxiliary line are all integrated on a sledge seat, convenient mobile and installation, and by sledge dressization Integrated design, continuous metering can be realized, reduce equipment investment cost, what also can realize efficiently and accurately carries out test separate measurement to production gas well simultaneously.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (8)
1. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit, it is characterized in that: comprise gas-liquid separator (2), the entrance point (21) of gas-liquid separator (2) is provided with import block valve (1), the top exit end (22) of gas-liquid separator (2) is connected with the first pipeline (15), first pipeline (15) is provided with natural gas flowmeter (3), gas outlet block valve (4), and natural gas flowmeter (3) is located near top exit end (22) side;
The outlet at bottom end (23) of gas-liquid separator (2) is connected with the second pipeline (16), on second pipeline, (16) are provided with profit block valve (6), oil-water mass flow rate meter (8) and motor-operated control valve (9), profit block valve (6) is located near outlet at bottom end (23) side, and oil-water mass flow rate meter (8) is located between profit block valve (6) and motor-operated control valve (9);
Be connected with the 6th pipeline (20) after described the first pipeline (15) and the second pipeline (16) converge, the 6th pipeline (20) is provided with gas-liquid mixed outlet block valve (5), and gas-liquid mixed outlet block valve (5) is connected with downstream line (24);
Described gas-liquid separator (2), the first pipeline (15), the second pipeline (16), the 6th pipeline (20) and import block valve (1) are installed on sledge seat (14).
2. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 1, it is characterized in that: described gas-liquid separator (2) is provided with content gauge (10), content gauge (10) is connected by the 3rd pipeline (17) with motor-operated control valve (9).
3. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 1 or 2, it is characterized in that: between the top exit end (22) of described gas-liquid separator (2) and natural gas flowmeter (3), be provided with the 4th pipeline (18), and the 4th pipeline (18) is provided with safety valve (11).
4. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 3, it is characterized in that: also comprise five pipeline (19) in parallel with safety valve (11), one end of 5th pipeline (19) is connected with the arrival end of safety valve (11), one end is connected with the port of export of safety valve (11) in addition, 5th pipeline (19) is provided with emptying block valve (12) and emptying flow control valve (13), and emptying flow control valve (13) is positioned at the downstream position of the 5th pipeline (19).
5. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 1, is characterized in that: be provided with y-type filter (7) between described profit block valve (6), oil-water mass flow rate meter (8).
6. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 1, is characterized in that: in gas-liquid separator (2), top exit end (22) side is provided with mist eliminator (25).
7. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 4, is characterized in that: the 3rd described pipeline (17), the 4th pipeline (18), the 5th pipeline (19) are installed on sledge seat (14).
8. large collecting well group natural gas gas-liquid separation metering blending transportation skid-mounted unit as claimed in claim 1, is characterized in that: described gas-liquid separator (2) adopts vertical gas-liquid separator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520458518.XU CN204738803U (en) | 2015-06-30 | 2015-06-30 | Big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device |
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| CN201520458518.XU CN204738803U (en) | 2015-06-30 | 2015-06-30 | Big cluster well natural gas gas -liquid separation measurement blending transportation skid -mounted device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929609A (en) * | 2015-06-30 | 2015-09-23 | 西安长庆科技工程有限责任公司 | Large cluster well group natural gas gas-liquid separation metering mixed transportation skid-mounted unit |
| CN105443105A (en) * | 2015-12-18 | 2016-03-30 | 重庆欣雨压力容器制造有限责任公司 | Shale gas sand removing device |
-
2015
- 2015-06-30 CN CN201520458518.XU patent/CN204738803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929609A (en) * | 2015-06-30 | 2015-09-23 | 西安长庆科技工程有限责任公司 | Large cluster well group natural gas gas-liquid separation metering mixed transportation skid-mounted unit |
| CN105443105A (en) * | 2015-12-18 | 2016-03-30 | 重庆欣雨压力容器制造有限责任公司 | Shale gas sand removing device |
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